247880049 has 4 divisors (see below), whose sum is σ = 330506736. Its totient is φ = 165253364.

The previous prime is 247879987. The next prime is 247880053. The reversal of 247880049 is 940088742.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 247880049 - 2¹³ = 247871857 is a prime.

It is a super-2 number, since 2×247880049² = 122889037384484802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247880069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41313339 + ... + 41313344.

It is an arithmetic number, because the mean of its divisors is an integer number (82626684).

Almost surely, 2^247880049 is an apocalyptic number.

It is an amenable number.

247880049 is a deficient number, since it is larger than the sum of its proper divisors (82626687).

247880049 is an equidigital number, since it uses as much as digits as its factorization.

247880049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82626686.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 247880049 is about 15744.2068393425. The cubic root of 247880049 is about 628.1748206615.

The spelling of 247880049 in words is "two hundred forty-seven million, eight hundred eighty thousand, forty-nine".